not perkunas answer.
you could use tenacity and under valor warrior/mage bane enemies who come close (and in hard moment to use your hero ud);
aqua swirl those ones who is in front with help of your magnus;
to recieve damage instead of weak allies and simply just to spread incoming damage;
to heal your ally members with your heal, while harrasing enemies with magnus;
It doesn't mean you had to go rambo style in front, but you could play safe and do all those things above. Anyway pvp ended and you died with half of the mana.
With transfer pain you can survive 17k+ damage in a second, not mentioning the heal from tenacity, your self heal, bp/ee's, cubic's heal, white potions, OL's heal, etc.
All these in total means efficiency during the pvp. Don't look at Jambo at all. He was newb, he is newb and he probably will stay newb.
Learn from those who is the best in things they do.
5 cents from hero PW, ES (in the past).